Display panel and display device

Patent metadata

Field	Value
Publication number	US-12364116-B2
Application number	US-202117630132-A
Country	US
Kind code	B2
Filing date	Apr 9, 2021
Priority date	May 6, 2020
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

Disclosed are a display panel and a display device. The display panel includes: a plane display unit; and a corner display unit. The corner display unit is located at the corner position on the periphery of the plane display unit, and has a plurality of corner pixels. Each corner pixel includes four corner sub-pixels, i.e., a first corner sub-pixel and a second corner sub-pixel respectively located on two opposite vertexes of a quadrilateral, and a third corner sub-pixel and a fourth corner sub-pixel located another two opposite vertexes of the quadrilateral. The first corner pixel drive circuit, the second corner pixel drive circuit, the third corner pixel drive circuit, and the fourth corner pixel drive circuit are located in the same corner pixel drive circuit row.

First claim

What is claimed is:

1. A display panel, comprising:
a plane display part;
a corner display part, located at a corner position on a periphery of the plane display part, and having a plurality of corner pixels, wherein each corner pixel comprises four corner sub-pixels comprising a first corner sub-pixel and a second corner sub-pixel respectively located on two opposite vertexes of a quadrilateral, and a third corner sub-pixel and a fourth corner sub-pixel located on another two opposite vertexes of the quadrilateral; and
a plurality of corner pixel drive circuits, wherein each corner pixel drive circuit comprises a first corner pixel drive circuit electrically connected to the first corner sub-pixel, a second corner pixel drive circuit electrically connected to the second corner sub-pixel, a third corner pixel drive circuit electrically connected to the third corner sub-pixel, and a fourth corner pixel drive circuit electrically connected to the fourth corner sub-pixel; and the first corner pixel drive circuit, the second corner pixel drive circuit, the third corner pixel drive circuit, and the fourth corner pixel drive circuit are located in a same corner pixel drive circuit row, wherein the first corner pixel drive circuit is different from the third corner pixel drive circuit;
wherein the plane display part comprises a plurality of plane sub-pixels distributed in an array, and a density of the corner sub-pixels is less than a density of the plane sub-pixels.

2. The display panel according to claim 1 , wherein the first corner sub-pixel is a sub-pixel emitting blue light, the second corner sub-pixel is a sub-pixel emitting red light, the third corner sub-pixel is a sub-pixel emitting green light and the fourth corner sub-pixel is a sub-pixel emitting green light.

3. The display panel according to claim 1 , wherein an extending direction of the corner pixel drive circuit row is parallel to a first direction, and the first corner sub-pixel and the second corner sub-pixel all have overlapping regions with the corner pixel drive circuit row;
the first corner sub-pixel comprises a first anode, and the first anode is electrically connected to the first corner pixel drive circuit at an overlapping position; and the second corner sub-pixel comprises a second anode, and the second anode is electrically connected to the second corner pixel drive circuit at an overlapping position.

4. The display panel according to claim 3 , wherein the third corner sub-pixel comprises a third anodes, and the fourth corner sub-pixel comprises a fourth anode; and
the display panel further comprises a third connecting line and a fourth connecting line, the third anode is electrically connected to the third corner pixel drive circuit through the third connecting line, and the fourth anode is electrically connected to the fourth corner pixel drive circuit through the fourth connecting line.

5. The display panel according to claim 4 , wherein an extending direction of the third connecting line is perpendicular to the first direction;
the fourth connecting line comprise a first connecting portion with an extending direction parallel to the first direction, and a second connecting portion with an extending direction perpendicular to the first direction; and one end of the first connecting portion is electrically connected to the fourth anode, another end of the first connecting portion is electrically connected to the second connecting portion, and another end of the second connecting portion is electrically connected to the fourth corner pixel drive circuit.

6. The display panel according to claim 4 , wherein the third connecting line and the third anode are disposed on a same layer and made of a same material, and the fourth connecting line and the fourth anode are disposed on a same layer and made of a same material.

7. The display panel according to claim 1 , wherein the plane display part comprises a plurality of pixel row groups, and each pixel row group comprises a first sub-pixel row, a second sub-pixel row, and a third sub-pixel row that are sequentially disposed; and
the first corner sub-pixel, the second corner sub-pixel, and the second sub-pixel row are located in a same sub-pixel row.

8. The display panel according to claim 7 , wherein the third corner sub-pixel and the first sub-pixel row are located in a same sub-pixel row; and the fourth corner sub-pixel and the third sub-pixel row are located in a same sub-pixel row.

9. The display panel according to claim 7 , wherein the each pixel row group further comprises a fourth sub-pixel row located on a side of the third sub-pixel row away from the second sub-pixel row.

10. The display panel according to claim 1 , wherein the plane display part comprises a plurality of plane pixel drive circuits electrically connected to the plane sub-pixels in a one-to-one correspondence mode; and
a region occupied by the corner pixel drive circuits is smaller than a region occupied by the plane pixel drive circuits.

11. The display panel according to claim 1 , wherein interfacing positions of the corner display part where the corner display part is interfaced with the plane display part have a plurality of gate drive circuit groups arranged in sequence in an extending direction of the interfacing positions, and each gate drive circuit group comprises at least two columns of gate drive circuits.

12. The display panel according to claim 11 , wherein the corner pixels are disposed between adjacent gate drive circuit groups.

13. The display panel according to claim 12 , wherein in the each corner pixel, a minimum width of a gap between the first corner sub-pixel and the second corner sub-pixel in a first direction is the same as a maximum width of the third corner sub-pixel in the first direction.

14. The display panel according to claim 13 , wherein a minimum width of a gap between two adjacent corner pixels in a same corner pixel row in the first direction is the same as a maximum width of the fourth corner sub-pixel in the first direction; and a minimum length of a gap between two adjacent corner pixels in a same corner pixel column in a second direction is greater than a width of the fourth corner sub-pixel in the second direction.

15. The display panel according to claim 1 , further comprising a plurality of sections of through grooves, and the through grooves are located at gaps between adjacent corner pixels.

16. A display device, comprising a display panel, wherein the display panel comprises:
a plane display part;
a corner display part, located at a corner position on a periphery of the plane display part, and having a plurality of corner pixels, wherein each corner pixel comprises four corner sub-pixels comprising a first corner sub-pixel and a second corner sub-pixel respectively located on two opposite vertexes of a quadrilateral, and a third corner sub-pixel and a fourth corner sub-pixel located on another two opposite vertexes of the quadrilateral; and
a plurality of corner pixel drive circuits, wherein each corner pixel drive circuit comprises a first corner pixel drive circuit electrically connected to the first corner sub-pixel, a second corner pixel drive circuit electrically connected to the second corner sub-pixel, a third corner pixel drive circuit electrically connected to the third corner sub-pixel, and a fourth corner pixel drive circuit electrically connected to the fourth corner sub-pixel; and the first corner pixel drive circuit, the second corner pixel drive circuit, the third corner pixel drive circuit, and the fourth corner pixel drive circuit are located in a s

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Sun Kuo
• Wang Pinfan
• Chan Yucheng
• Li Wenqiang
• Zhang Zhenhua

Classifications

• H10K59/351

  comprising more than three subpixels, e.g. red-green-blue-white [RGBW] · CPC title

• H10K59/353 Primary

  characterised by the geometrical arrangement of the RGB subpixels · CPC title

• H10K77/111

  Flexible substrates · CPC title

• H10K59/124

  Insulating layers formed between TFT elements and OLED elements · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title